W83977AF Information Storage Devices, Inc, W83977AF Datasheet - Page 40

• Manufacturer Part Number: W83977AF
• Description: W83877TF Plus Kbc, Cir, RTC
• Manufacturer: Information Storage Devices, Inc

(12) Specify
(13) Seek
(14) Configure
(15) Relative Seek
Command
Execution
Command
Command
Execution
Command
PHASE
PHASE
PHASE
PHASE
R/W
R/W
R/W
R/W
W
W
W
W
W
W
W
W
W
W
R
W
W
W
D7
D7
D7
| ---------SRT ----------- | --------- HUT ---------- |
0
0
|------------ HLT ----------------------------------| ND
0
| --------------------PRETRK ----------------------- |
0
0
0
D7
1
0
| -------------------- RCN ---------------------------- |
-------------------- NCN -----------------------
EIS EFIFO POLL | ------ FIFOTHR ----|
D6
D6
D6
0
0
0
DIR
0
0
D6
0
D5
D5
D5
0
0
0
0
0
D5
0
0
D4
D4
D4
0
1
0
D4
0
0
0
0
D3
D3
D3
1
0
0
D3
0
0
0
1
HDS DS1 DS0
D2
D2
D2
1
HDS DS1 DS0
0
0
D2
0
1
W83977F/ W83977AF
D1
D1
D1
1
0
1
1
D1
1
Publication Release Date: March 1998
D0
D0
D0
1
0
D0
1
1
1
Command codes
Command codes
Head positioned over proper
cylinder on diskette
Configure information
Internal registers written
Command codes
PRELIMINARY
-29 -
REMARKS
REMARKS
REMARKS
REMARKS
Revision 0.58